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Edit this profileAt a glance
- 1899 East Roseville Parkway, Suite 100, Roseville, CA 95661
About Dr. Sazima
Gregory C. Sazima, MD is a healthcare provider in Roseville, CA specializing in psychiatry. Gregory trained at University of Cincinnati College of Medicine, graduating in 1987. Medicare claims data shows Gregory provided 1,153 services to 145 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, psychotherapy with evaluation and management visit, 30 minutes, and psychotherapy with evaluation and management visit, 1 hour. This provider record is associated with NPI 1013020783.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (916) 797-2248
- Email not available
Practice Locations
1899 EAST ROSEVILLE PARKWAY SUITE 100
Roseville, CA 95661
Conditions Commonly Evaluated or Treated
Within Psychiatry generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Anxiety, trauma, and obsessive-compulsive
Mood disorders
Psychotic disorders
Substance-related and addictive
Addiction & Substance Use
Cognitive and adjustment
Eating Disorders
Eating, sleep, and somatic
Mood & Depression
Neurodevelopmental and behavioral
Personality and dissociative
Sleep & Wakefulness
Procedures & services
Most searched procedures
- Anxiety and depression treatment
- Cognitive behavioral therapy
- Medication management
- Psychiatric evaluation
- Telepsychiatry
Assessment
Addiction care
Addiction Medicine
Assessments
Brain stimulation
Consultations
Diagnostics
Inpatient care
Interventional psychiatry
Psychotherapy
Sleep Medicine
Specialized care
Therapy
Therapy and care
Procedures Most Often Billed to Medicare
1,153 services · 145 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Psychotherapy with evaluation and management visit, 30 minutes | Treatment | 90833 |
369 | More often than most peers in Psychiatry |
| Psychotherapy with evaluation and management visit, 1 hour | Treatment | 90838 |
165 | More often than most peers in Psychiatry |
| Psychotherapy with evaluation and management visit, 45 minutes | Treatment | 90836 |
38 | Less often than most peers in Psychiatry |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
581 | More than most peers in Psychiatry |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other psychiatrists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Other psychiatrists in Roseville 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Cincinnati College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1987 at University of Cincinnati College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Psychotherapy with evaluation and management visit, 30 minutes 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Sazima specialize in?
Dr. Sazima is a psychiatrist in Roseville, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychiatry”.
NPI registry
Where is Dr. Sazima located?
Dr. Sazima is listed at 1899 East Roseville Parkway Suite 100, Roseville, CA 95661. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Sazima's phone number?
The number on file is (916) 797-2248. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Sazima?
Dr. Sazima's National Provider Identifier is 1013020783. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Sazima go to medical school?
Dr. Sazima attended University of Cincinnati College of Medicine, graduating in 1987. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Sazima have?
Dr. Sazima has 39 years experience. Calculated from a graduation year of 1987, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Sazima do most often?
According to Medicare billing data, Dr. Sazima provides treatments such as psychotherapy with evaluation and management visit, 30 minutes and psychotherapy with evaluation and management visit, 1 hour, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Sazima's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Sazima. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.